with the families of those that lost loved ones. back to you. >> nbc's ron allen. thank you. president obama and the first lady marked the somber anniversary this morning leading a moem of silence outside the white house. he visited the pentagon and arlington national cemetery, while vice president biden was at shanksville, pennsylvania. mitt romney spent the day visiting first responders in the national guard. a lot has changed in 11 years since 9/11, including our national defense. we started two wars both in the name of 9/11, two very costly wars. a fact that is eping to shape the presidential campaign. the pentagon budget is 55% higher than it was. the first cut is 487 billion in cuts over the next decade. congress agreed a year ago and president obama signed it as part of the budget control act last summer. the military says with smart changes it could operate under the cuts without jeopardizing preparedness. the second set is for another 500 billion. it would trigger into effect in january if congress and the white house can't cut a deal to slash the deficit by another trillion tlars.